From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de ([195.135.220.15]:45963 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751912AbeEGPDZ (ORCPT ); Mon, 7 May 2018 11:03:25 -0400 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id CBAE2AE91 for ; Mon, 7 May 2018 15:03:23 +0000 (UTC) Date: Mon, 7 May 2018 17:00:46 +0200 From: David Sterba To: Qu Wenruo Cc: linux-btrfs@vger.kernel.org Subject: Re: [PATCH] btrfs: qgroup: Allow trace_btrfs_qgroup_account_extent() to record its transid Message-ID: <20180507150046.GC6649@twin.jikos.cz> Reply-To: dsterba@suse.cz References: <20180503015902.26032-1-wqu@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20180503015902.26032-1-wqu@suse.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Thu, May 03, 2018 at 09:59:02AM +0800, Qu Wenruo wrote: > When debugging quota rescan race, some times btrfs rescan could account > some old (committed) leaf and then re-account newly committed leaf > in next generation. > > This race needs extra transid to locate, so add @transid for > trace_btrfs_qgroup_account_extent() for such debug. > > Signed-off-by: Qu Wenruo Reviewed-by: David Sterba